I see where people are coming from that don't want to scratch every fetish to see progress in the one(s) they like.
Here is what I have I have discovered in my routes. I have one route where I have tried to accumulate every filthy point in the game. After playing through the last release, I have accumulated 41 filthy points on that route, and have experienced everything except the good-wife sex, of course. On another route, I have accumulated only enough filthy points to get all the scenes, so far. On that one, I needed to accumulate 31 filthy points. That means I was able to ignore some things that didn't appeal to me at all. I chose to stiff the movers and Luke Bennett. I was even able to drop a Sam point and a Dylan point. So far, so good. Of course, maybe I will get bitten by not playing nice with the movers. That variable is kept by the game and might be referenced in some future release. Also, it seems reasonable that Sophia will have to play nice with either Bennett or Principal Johnson. I chose Johnson. We'll see how that works out. ... Then on my good-wife route, Dylan will probably have to go join the army. Well, that's his problem, not mine!
Basically, you don't have to choose every filthy scene in the game, but nobody (except the developer) knows what the ramifications of your choices will be.